1. I noticed the same thing. I think TurboTax checks e-file status by the name and Social Security number (or maybe just Social Security number), then it automatically marks any return with the same name and SSN as accepted, even though only one was actually filed.
You could not possibly have filed two copies of the return. The IRS will only accept one return for a particular SSN. Open the returns in TurboTax and look at the list of forms in forms mode. Only one of the returns will have a Postmark Report (the last form in the federal return). That's the one that was actually filed and the one that you should amend. The "accepted" notation on the other copy is just a result of TurboTax's imprecise checking mechanism.
